Matchphoto Swap

CadFather · 21 Feb 2012, 07:46

Hi, is there any way to swap a matched photo image for another one?

suppose you import an image - did all the work, but in the meantime the site has changed slightly - afaik there is no way to swap and keep the matched scene.

kingsi · 24 Apr 2012, 22:21

Probably not understanding exactly what you mean, but surely all you do is move the view of the model to line up with the new image then get your axis in the right place and carry on where you left off as there is no limit to how many matched photos you use.

CadFather · 25 Apr 2012, 09:46

you're absolutely right - the fact is that when you import an image with match photo - that image cannot be changed anymore.

situations might not be very common: say you have a night and a day shot, you photomatch and model - then you could just swap the images without tinkering with the axis.

Pixero · 25 Apr 2012, 10:10

How about after you have done the photomatch, you duplicate the scene (Add) and add your other image as a watermark?

CadFather · 25 Apr 2012, 15:34

yes, but you cannot have it as background instead of the photomatched one - unless i'm missing something (usually the case ) the only way is to swap the image

in fact that is exactly what i'd like - same axis but different image..

kingsi · 25 Apr 2012, 18:00

You can have as many photomatched pictures as you like. Just keep adding them as image imports (photomatched). If you wanted you could mess about with the pictures in photoshop or similar program to give the illusion of darkness etc etc save as new files and insert them as photomatched

andybot · 25 Apr 2012, 18:22

@kingsi said:

You can have as many photomatched pictures as you like. Just keep adding them as image imports (photomatched). If you wanted you could mess about with the pictures in photoshop or similar program to give the illusion of darkness etc etc save as new files and insert them as photomatched

I think you missed the point. The question is to replace a photo in a photomatch that's already set up. I'd be curious if there's a way to do that too. Photomatch is so damn fiddly, it's next to impossible to get the same view twice.

kingsi · 25 Apr 2012, 19:22

I have had a go at replacing a photomatched image but does not seem possible. Sorry

pbacot · 25 Apr 2012, 19:29

Match Photo sets up a view based on your approximation of what you perceive in a photograph. Unless the camera is in the same place exactly, you'd have to make another approximation anyway. It's not exact but if you want something like the existing view (or very close if you actually have an exact tripod setup), you just have to import and set it up again. How often would this need to be done?

I think it has been pointed out that even using an exact repeat shot as background in a duplicate scene, the (SU) camera view changes slightly so you can't get the same alignment. I haven't tested that yet.

I think it's fiddly by the very nature of the task (eyeballing lines on screen) and trying to accommodate great variation of photographic conditions. I've put different matched photos in the same model. Works OK for what it is. (It's a feature some of the pros here would never bother with.)

I can't see how MP would ever be more, unless it's newly coded in that advanced content-aware 3d photograph software others have posted about.

brookefox · 25 Apr 2012, 23:42

Max, Can you show more of the problem? I have no experience with MP only replacing images in a model via right click, which of course in easy if they are the same size.

CadFather · 26 Apr 2012, 00:17

there is no problem to show, it's just a wish to be able to swap the source photomatch image for another, after it has been aligned and modelled.

i don't even think it possible at present because the image seems almost embedded in the file and i'm not hopeful that ruby can access it..

Pixero · 26 Apr 2012, 06:28

Hmmm... I retried my idea and it seems to work for me.
First Photomatch the first photo. Then right click the scene tab and choose Add.
Then uncheck show forground and background photo.
Add the second image as watermark.
Update scene.

CadFather · 26 Apr 2012, 12:28

Thank you Pixero - that helped a lot because as i went back to play i found out what was driving mad... (really i had given up on this! )

when you add the second scene, it doesn't save these, (since it duplicates the photo-matched)

switching these on, i can move through different scenes and keep the axis put...!

might do a small tutorial later today if i have time..